<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item,i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" mode="" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">
				¥{{goods_info.goods_price}}
			</view>
			<!-- 商品信息主体区域 -->
			<view class="goods-info-body">
				<!-- 商品名 -->
				<view class="goods-name">
					{{goods_info.goods_name}}
				</view>
				<!-- 收藏 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class=" freight">
				快递：免运费
			</view>
		</view>
		<!-- rich-text可以渲染html字符串，解析html并渲染对应结构在页面上 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		<!-- 商品导航组件区域 -->
		<view class="goods_nav">
			<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import { mapState,mapMutations,mapGetters } from 'vuex'
	export default {
		computed:{
			...mapGetters('m_cart',['total'])
		},
		watch:{
			// total(newVal){
			// 	const findResult = this.options.find(x=>x.text === '购物车')
			// 	if (findResult) {
			// 		findResult.info = newVal
			// 	}
			// }
			total :{
				handler(newVal){
					const findResult = this.options.find(x=>x.text === '购物车')
					if (findResult) {
						findResult.info = newVal
					}
				},
				immediate: true
			}
		},
		data() {
			return {
				goods_info:{},
				//左侧按钮组的配置对象
				options:[
					{
						icon:'shop',
					    text:'店铺',
					},
					{
						icon:'cart',
						text:'购物车',
						info:0
					}
				],
				//右侧按钮的配置对象
				buttonGroup:[
					{
						text:'加入购物车',
						backgroundColor:'#ff0000',
		                color:'#fff'
					},
					{
						text:'立即购买',
						backgroundColor:'#ffa200',
						color:'#fff'
					}
				]
			};
		},
		onLoad(options) {
			const goods_id = options.goods_id
			this.getGoodsInfo(goods_id)
		},
		methods:{
			async getGoodsInfo(goods_id){
				const{data:res} = await uni.$http.get('/api/public/v1/goods/detail',{
					goods_id
				})
				if(res.meta.status !== 200) return uni.$showMsg
				//使用正则，给返回回来的html结构的每个image添加block属性，解决图片之间的空白
				res.message.goods_introduce=res.message.goods_introduce.replace(/<img /g,'<img style="display:block"').replace(/webp/g,'jpg')
				//再使用正则，将里面webp格式的图片变换为jpg
				this.goods_info = res.message
			},
			preview(i){
				//轮播图的大图预览
				uni.previewImage({
					current: i,
					urls:this.goods_info.pics.map(x=>x.pics_big)
				})
			},
			onClick(e){
				if(e.content.text === '购物车') {
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			buttonClick(e) {
				if(e.content.text === '加入购物车'){
					const goods ={
						goods_id:this.goods_info.goods_id,
						goods_name:this.goods_info.goods_name,
						goods_price:this.goods_info.goods_price,
						goods_count:1,
						goods_small_logo:this.goods_info.goods_small_logo,
						goods_state:true
					}
					this.addToCart(goods)
				}
			}
			,
			...mapMutations('m_cart',['addToCart'])
		}
	}
</script>

<style lang="scss">
.goods-detail-container{
	padding-bottom: 50px;
}
swiper {
	height: 750rpx;
	image {
		width: 100%;
		height: 100%;
	}
}
.goods-info-box{
	padding: 10px;
	padding-right: 0;
	.price{
		color: #c00000;
		font-size: 18px;
		margin: 10px 0;
	}
	.goods-info-body{
		display: flex;
		justify-content: space-between;
		.goods-name{
			font-size: 13px;
			margin-right: 10px;
		}
		.favi{
			width: 120px;
			font-size: 12px;
			display: flex;
			//上下布局
			flex-direction: column;
			align-items: center;//横向居中
			justify-content: center;//纵向居中
			border-left: 1px solid #efefef;
			color:gray;
		}
	}
	.freight{
		font-size: 12px;
		color: gray;
		margin: 10px 0;
	}
}
.goods_nav {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}
</style>
